The first step is to measure the length and width of the room in question. After making all the adjustments, and a unit won't blow air at all, call for professional service. Q: “I have a portable air conditioner that is not keeping the room cool enough, what’s wrong with it?”. The return vent using the IR gun shows 69.3-70 in 4 different readings. The condenser coils dissipate the heat as the refrigerant passes through the coils. A big problem that needs to be fixed STAT. Keep up with regular cleaning and maintenance to prevent these issues from arising. This restricts airflow and a portable AC won’t cool the room. If there’s a leak or ambient temperatures are alarmingly high, your unit might not be able to combat these factors to cool off the room. ... Hi Tom - I have an "all in one" furnace and air conditioning unit in a condominium closet. By size we don’t mean the actual physical dimensions of the unit, but instead its cooling power potential. I don't know what to do because 75 is frankly too hot for me. I have a Danby 12,000 BTU portable air conditioner unit that just doesn't seem to actually cool the room down. If you can see the blower wheel, check that it is not fouled with lint. On extremely hot days, however, your air conditioner might not be able to cool down your home to its normal temperature. The condenser coils dissipate the heat as the refrigerant passes through the coils. In fact, it seems your AC has trouble hitting any temperature below 80 degrees.. And you’re getting a little hot and bothered (literally). The limit is usually anywhere below 60 degrees Fahrenheit. If the condenser coils are dirty, they won’t be able to dissipate the heat as effectively. As a result of constant venting, a pressure imbalance is created in which warm air is pulled from other areas, such as outside or adjoining rooms. This makes portable air conditioning unit good for apartment buildings that do not permit window units or houses, And whose windows cannot accommodate the installation of permanent window units. Might also have a dirty coil. Portable AC units are measured in terms of BTU ratings, and the BTU rating needs to align with the size of the room you are trying to cool. My thermostat shows outside temp as 94 I have my AC running since morning and it hasn't gone below 75, it infact increased to 76 and then went down again to 75. If the pre-filter accumulates layers of dust and dirt it’ll mix with moisture and form a layer of dirt on the evaporator coil. If the vent temperature goes up, that is an indication that the filter is interfering with air flow. Regardless of the model or brand, each air conditioner has the lowest temperature limit. If your portable AC unit is in a humid location, or you live in a humid environment, you’ll need to empty out the unit more frequently to compensate for additional moisture absorption. The guy came and checked everything, told me the ac is as good as new. Your unit’s pre-filter is another important area you shouldn’t neglect to clean. Moreover, even if it's more than 100 degrees outdoors, and your air conditioning system is running continuously to cool down your home, you have every right to expect that the temperature you set on your thermostat is the temperature that the air conditioner will deliver. In same cases, same-sized rooms require different BTUs because of what the room is used for. I have a infrared thermometer ( i know they are not ideal always), My return vent shows 73-74 when the thermostat is set at 73. Portable AC units are measured in terms of BTU ratings, and the BTU rating needs to align with the size of the room you are trying to cool. As a result, you could be faced with mechanical and electrical problems. Unplug the unit for at least 30 seconds. A dirty unit no longer functions properly until it is cleaned. Is my AC underpowered? Today it was 83 and I had my a/c set at 74 and it remained there but I started to feel warm so I lowered it to 72. A second T5900 is working fine. Use these numbers to calculate the area of the space, and from there match the size of the room with the appropriate unit. It can also lead to excessive wear and tear and premature aging. This is the device that monitors the incoming air temperature and turns the compressor on or off. 47 degrees out of the vent tells me that you are not moving enough air. If your air conditioner is not blowing cold air and you have inspected the air filter and fan motor and found them okay, then you may have a problem with the temperature control or thermostat. That it is not fouled with lint power - Website Designed by vs cool shows 69.3-70 in 4 readings... 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